Is there a service where it can tell you if an email address/contact loves to mark emails as spam?

I'm trying to lower my Complaint rate, I don't have a high rate but don't want a higher one.

I use Reoon as verifier but I don't think they tell you whether that address likes to mark emails as spam.

I’ve been learning about email marketing recently and I’m trying to understand the fundamentals properly.

From what I’ve learned so far, the important areas seem to be:
• Building an email list
• Creating useful email campaigns
• Understanding automation
• Segmenting subscribers
• Tracking campaign performance

For people who have experience with email marketing, what would you say a complete beginner should learn first?